python selenium 最简单示例

使用 pip 安装  selenium

下载 chromedriver，添加在PATH中

# -*- coding: utf-8 -*-  

from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
import time

# Create a new instance of the browser driver
driver = webdriver.Chrome()  ##可以替换为IE(), Firefox()  Chrome() 

# go to the google home page
driver.get("https://www.google.com")  

# find the element that‘s name attribute is q (the google search box)
inputElement = driver.find_element_by_name("q")  

# type in the search
inputElement.send_keys("Cheese!")

# submit the form. (although google automatically searches now without submitting)
inputElement.submit()  

# the page is ajaxy so the title is originally this:
print(driver.title) 

try:
    # we have to wait for the page to refresh, the last thing that seems to be updated is the title
    WebDriverWait(driver, 10).until(lambda driver : driver.title.lower().startswith("cheese!"))  

    # You should see "cheese! - Google Search"
    print(driver.title)  

finally:
    driver.quit()